If changing the nation's motto, pledge of allegiance, and money to can convince a majority to believe America is a Christian country, then just imagine what a King (thanks SCOTUS) can proclaim in God's name. Church/State separation doesn't just protect the Church from the State (and vice versa). It protects the Church from the Church-State. Right now, the far right (still operating as the GOP) is the Church-State. Best bet is stop electing people who use your God as a pathway to power.